Weba st john ambulance trainer shows you how to make an arm sling and an elevation sling, and explains what types of injuries each sling is suitable for.
Two polaroids are placed in the path of unpolarized beam of intensity i 0 such that no light is emitted from the second polaroid. When one of them is rotated through 60∘, then what percentage of the incident unpolarised light will be transmitted by the polaroids? Use the mirror equation to show that an object placed between f and 2f of a concave mirror produces a real image beyond 2f. If a third polaroid, whose transmission axis makes an angle … Two polaroids a and b are placed with their polaroid axes 30∘ to each other as shown in the figure. You are provided with a narrow and parallel beam of light. Two polaroids are crossed to each other. Find an expression for intensity of transmitted light when a polaroid sheet is rotated between two crossed polaroids. State how you will determine experimentally, whether it is a beam of ordinary (unpolarised) light, partially polarised light or … If a third polaroid whose polarization axis makes an angle θ … In which position of the polaroid sheet will the transmitted intensity be … Two polaroids are present in the path of…